Casing and cylinder construction for gas-engines and the like.



C. R. EIGGINS. l GASIN- lAND CYLINDER CONSTRUCTION FOR GAS- ENGINES AND THE LIKE.

APPLICATION FILED FEE; 2.6, 19081 Patented Sept c. R. PIGGINS. GASING AND CYLINDER CONSTRUCTION PQR .GAS ENGINES AND THE LIKE.

' APPLICATION FILED PEB. 26,1908'.

898,678, Patented Sept. 15,' 1908.

2 SHEETS- SHEET 2.

UNIED sans naar NT seien CHARLES n. PieeiNs, OF RACINE, Wis'CoNsIN, ASSIGNOR CE ONE-HALE. To FREDERICK PIGCINS, or RACINE, WISCONSIN.

casino AND ovnninnn, CONSTRUCTION Fon Gres-Enemies Yam) TEE Lm.

Patentes sept. 15,1908.

Application med Femm? 26,1908. 'eeen 110,417,837.

To all whom it may concern:

Be it known that I, CHARLES RQPIGGINS, residing in Racine, in the county of Racine and State of Wisconsin, have invented new and useful Improvements in Casing andCylinder Constructions for Gas-Engines and the Like, of Which the following is a description,

.res ectively. .y

ons'iderable di'iculty is usually experienced inmaking the necessarytigiht'tting of pipe connections for multiple c Iinder en'- gines when tubing is relied upon or supply-A ing the cooling Water to the Jackets and the explosive mixture to the cylinders as Well as for discharging the exhaust ases and for removing the Water from the jackets, the t'ibing then constituting a'net-'vvork 'which interferes With the accessibilityl of thebther parts of the engine. IWith such co'structions the removal of one {",ylinderv vfor' repairs has usually necessitated the vdismemloerment of the entire engine. l y y It is an object of the resent invention vto avoid pipe fitting to a terial extent and to dispense With the obs'trlet'ions to the accessibiiity of the Workin arts hy conducting the cooling Water an t e gas through passages in the crank case and the cylinder Walls.

With the above and otherobjects in view the invention Consists in the casing construc- "to'h for Vgas engines and the like herein claimed, its parts and combinations of parts and all equivalents.

Referring to the accampenying drawings in which like characters of reference indicate the same parts in t e several views; 'Figure 1' is a front elevatio of one end of a multiple cylinder engine constructed in accordance with this invention, the cralrkZ case being broken away and sectioned; Fig. 2 is a vertical sectional view thereof on the plane of line 242 of Fig.,1;lFig. 3 lea sectional view ablenannen preferab ,mon'pipe connection 25 tapping the top of y above each cylin- 110 through onecy1inder,- taken on the plane of line 3 3 eilig. 2;'Fig. '4 is 'a similarview taken on the plaiielof line 4-4 of Fig. 2,; and, Fig. 5 is a plan of 'one end of the crank case With the cylindersfrernoved. 'I 'In these draif s 1() represents a crank case With the countersunk openings `11 forming cylinder seats to receive the shouldered ends ofthe cylinders 12 vas usual. The crank case is provided with e conduitl formed' in 6'5 its interior directl` beneath its top part, which constitutes t 'e base 'piate for the evL` inders, thewalls for said conduit beingV pref:

erably cast with the shell of the' crank cese. The conduit 134 extends lengths. '7o

Wise' of the crank caseand close to the series. of openings 11, provided with an opens ing le near each o the openings 11 which is adapted to register With a gas passage 15l formedin the Walls oi the cylinder 12 which 75 lits on said opening 11, the Walls of said gas passage being preferably cast integral with; the Walls of the cylinder and exte1'1dii:lg` through the water jacket 16` thereof to a port;`

17 opening into the usualintake valve chain@ ,862i

An integral boss 1.9 on' the crank case has an opening communicating with the gas co`n duit 13 and aords'ai pipe connection for the passes' from the carbureter. through the connection 19 to'the gas conduit and then l through the openings-14 to the gas passages' 1'5 of' each 'of' the'` cylinders vand through the of eninigs 17 tolthe intake 'valvechar'nhersf 't ereo theme it is admitted tothe exploe-L,

sion chanihers in 'the' nagel manner.

At the back of the-crank case is a water .conduit 20 which is similar to the gas conduit 13, though beinj'preierably of dierent sec- 95 This conduit has a boss 2id@ tional area. forming a pipe coupling for connection With the Water supply, and openin s 22 'leading'. therefrom through the top of t ye crank case near the cylinder openings 11 register with 100 Watery y, x '23 in the Walls of the cylinders leading tithe Water jackets 16, the Walls of the..water` vpassages 23 being preferabl integial Withihe t'tralls of the cylinders.

he Water fromthe Water Aj'acketsl' and 105 the exhaust gasesgrom the exhaust valve chambers 24 may be pared for i'n yany desiry as shown, bye com the Water jacket centrall `der, and by a common exhaust pipe 26 at the back of the engine connecting with the eX- haust valve chamber 2.4 of each cylinder.

As will be fully appreciated by those familiar with thel art to which this invention belongs, the very act of fitting the cylinders in place on their crank case completes the gas and water supply connections, it being only necessary to connect the carbureter with the boss 19 to supply all cylinders with their charge and to connect boss 21 with the water supply to provide the Water jackets of all cylinders with cooling water. This leaves only the pipe connections 25 and 26 to be connected up and they are so located as to permit of this being freely done, and are out of the way so as not to interfere with the ac-` cess to the working parts.

By means of this invention the cylinders may be made separately removable for purposes of repair, the embedding of the gas and water conduits inthe casing lermitting this to be done with ease, it being t en only necessary after the connecting rod of the desired cylinder has been disconnected to disconnect the water discharge pipe 25 and to detach the connecting flanges of the exhaust pipe 26 from the exhaust valve chamber 24 of the particular cylinder which it is desired to remove, and then the cylinder may be disconnected from the crank case and lifted from place without disturbing the other cylinders.

While the present invention is applicable tolcngines having only a single cylinder, it is particularly suited for multiple cylinder engines where the single gas conduit and 'the single water conduit in the crank case respectively serve to supply the gas and water passages of all of the cylinders. It is in the multiple cylinder gas engine also that the greatest saving in pipe Qconnections results from the use of this invention.

Further advantages resulting from'the casing construction of this invention are that the passages for the explosive mixture being within the cylinder walls are thereby kept heated during the operation ofthe engine and crank case there is less liability of the Water freezing than when it is conducted to the wa-v ter jackets through exposed tubes.

What I claim as my invention is:

1,. A gas engine casing,comprising a base having a cylinder seat, a water conduit and a gas conduit within the base each having an openin leading to the top of the base, an engine cy 'nder mounted on the cylinder seat of the base and provided with a `water passage and a gas passage Within its walls adapted to register with the openings of the water conduit and the gas conduit respectively, a water jacket communicating with the water passage, and an intake valve chamber com-y municating With the gas passage.

2. A multiple cylinder gas engine casing,

comprising a base provided with seats for the engine cylinders, a water conduit and a gas conduit formed in the base near the edges of the cylinder seats on .op osite sides thereof and each having its wal s integral with the base and provided with openings leading through the base to each of the cylinder seats, cylinders mounted on the cylinder seats. of the base and each provided with a water assage land a gas passage formed in the cyinder walls and registering with the openings of the water conduit and the gas 'conduit respectively, a water jacket communicating with the water passage of each cylinder, and an intake valve chamber communicating with the gas passage of each cylinder.

In testimony whereof, I affix my signature, in presence of two witnesses.

CHARLES R. PIGGINS. 

